Rotary-blower spark-gap.



W & WEBSTER v ROTARY BLOWER SPARK GAP.

APPLICATION FILED MAR.3 l917.

1,256,405. Patented Feb.12,1918.

Ha Plan 6. WeZsZr,

ATTORNEY E $TATE AENT FFKQEQ HARLAN S. WEBSTER, OF CANTON, OHIO.

ROTARY-BLOWER SPARK-GAP.

To all whom it may concern:

Be it known that I, HARLAN S. Weesrnn, a citizen of the" United States,residing at Canton, in the count of Stark and State of Ohio, haveinvente trodes of the apparatus. 1

Another obj ect is to provide in such an apparatus means whereby thesparks produced will be of uniform length. 4

A further object is to provide electrodes adapted to utilizemoreelliciently the air current produced in such an apparatus.

Other objects will appear upon examination of the accompanying drawingsand the description and claims below.

In the drawings,

Figure '1 is a side elevation of the apparatus.

Fig. 2 is an end view ofthe same.

Fig. 3 shows details of the apparatus.

Referring now to the drawings in detail, 1 represents a base or asupportin structure having vertically extending mem ers 2 suitablyprovided toward the upper extremity a with journals 3 havirg mountedtherein for rotation a shaft 4. aft 4 is provided toward one extremitywith means for produc-v ing rotation,here shown as a pulley 5 and isfurther provided with means for supporting the rotary electrodes, suchmeans being illus trated as a spider 6. Securely attached to the outerportions of spider 6 is an electrode element preferably comprising twoannular members of conducting material, 7 and 8 respectively, spacedapart concentrically to shaft 4 and in parallelism each to each. Securedbetween the inner faces of members 7 and 8 are a plurality of electrodes0, and these electrodes are preferably spaced apart in an annular rowconcentric to shaft 4 Conveniently located toward each extremity of base1 are standards 10 having toward the upper extremities stationaryelectrode elements 11 alined with and in proximity torevolubleelectrodcs 9. Electrode members 12 are spaced apart and arepreferably disposed concentrically to shaft 4. These mem- Specificationof Letters Patent.

Application filed March 3, 1917.

'being'of a width greater than the ga Serial No. 152,381.

bers are here shown as having a width greater than the spacing betweenelectrodes 9, but I may provide electrodes 9 of a width sullicient tooverlap the spaces between the Patented Feh.12,1918.

electrodes 12, the purpose in either case bemg to prevent variation inthe length of the spark gap during rotation of the revoluble element.

uitable means of insulation are provided between the various electrodesandthe other portions of the apparatus.

From the above description and drawings,

the operation of the apparatus will become apparent. 1

Upon the stationary electrodes being con nected with a suitable sourceofhigh tension electricity such as used for X-ray apparatus or wirelesstelegraphy, a discharge will result between one of the stationaryelements land the revoluble electrode element and from.

said revoluble element to the other stationary electrode element. Uponthe revoluble element being now rotated by connection of any suitablesource of power to pulley 5, a centrifugal blast of air will result,penetrating the passages between the various electrodes and thoroughlycooling the same. This blast will eliminate any tendency towardformation of an are, thereby causing production of highly dampedoscillations of great efficieney. The stationary electroiles tween therevoluble electrodes and eing mounted concentric thereto, the dischargeoccurring will be of uniform length, which is a very desirable featurefor certain purposes and especially wireless tclegraphy.

While I have here shown and described a preferred form of my inventionfor purposes of illustration, such embodiment is not to be interpretedas limiting the spirit and scope of the invention.

What I claim is:

1. In electric discharge apparatus, a revoluble element comprisingspaced annular members, an annular row of spaced radially disposedelectrodes between said members, said electrodes adapted to produce aradial discharge of fluid; a relatively stationary element comprising aplurality of spaced electrodes, said electrodes disposed concentricallyto said revoluble element, and adapted to receive an electric dischargefrom said i-evoluhle element and further adapted to be cooled by fluiddischarged from the revoluble element through such spaces.

said electrodes adapted to produce a radial discharge of fluid, arelatitely stationary element comprising a plurality of spacedelectrodes disposed concentrically to said revoluhleelement, and adaptedto receive an else-- tric discharge from said revoluble element,

- and further adapted to be cooled by fluid discharged from therevoluble element through such spaces a second stationary elementsimilarly formed to the first mentioned stationarv element, and likewiseadapted to be cooled by fluid discharged from the revoluble element andfurther adapted to transmit an electric discharge to the revolubleelement.

3. In electric discharge means, a revoluble element and a plurality ofelectrodes on said element, said element formed with passages betweensaid electrodes adapted to discharge of fluid; a relatively stationaryclement comprising a plurality of electrodes, said stationary elementformed with passages between said electrodes adapted to receive andconduct fluid discharged from said revoluble element to (3001 saidelectrodes of the stationary element; the electrodes of one of saidelements having a dimension in the direction of rotation greater thanthe corresponding dimension of the passages between the electrodes ofthe other element.

In testimony whereof I aiiix my signature.

I HARLAN s. WEBSTER.

